@Yogi1 summed it up nicely. I would recommend you google around and look at what Yohimbine actually does, it's meant to target stubborn fat receptors. Additionally, the effects of yohimbine are blunted severely by insulin, meaning it's best used fasted. I implemented it first thing in the morning, then did an hour of fasted cardio after only a bunch of water, but again that was to get from 7% body fat to 4% body fat. Seriously, you won't notice a difference with it. I was able to get to 8% without even using it. Fat burners don't do the majority of the work, they do a very small amount. Stubborn body fat doesn't mean you have to lose that last "stubborn 10 pounds." It mean you have a 6 pack already but need more definition in your lower abs, type of thing. You seem really hell bent on taking it. Just telling you from experience, you won't notice a difference with it at your current level. Stick to your diet and training consistently for the results you want. If you start to see your abs and want to take it to the next level, think about implementing it for fasted cardio in the morning.